Mariculture feeding device

Abstract

The invention discloses a mariculture feeding device, and belongs to the field of mariculture. The mariculture feeding device comprises a floating plate, buoys are fixedly installed at the four corners of the bottom of the floating plate, a feed box is fixedly installed on the floating plate, a feeding cylinder communicated with the feed box is arranged at the bottom of the floating plate, a traction assembly is connected between the floating plate and the feeding cylinder, a feeding hole is formed in one side of the feeding cylinder, a feeding assembly is slidably connected into the feeding cylinder, and the feeding hole is communicated with the feeding assembly. The feeding assembly is used for opening feeding holes in different positions according to the feeding depth; a piston assembly is arranged in the feed box; according to the device, uniform feeding can be conducted in sea areas with different depths, the feeding amount is gradually increased according to the depth, and feeding is sufficient while smooth feeding is guaranteed; the feeding efficiency can be further improved by utilizing the pressure intensity of the piston, and seawater can be prevented from reversely permeating into the feed box through the feeding cylinder; and clogging of the discharging opening is avoided, meanwhile, feed caking is prevented, and it is guaranteed that the feed box can continuously feed the feed to the feeding barrel.

Description

Technical Field

[0001] The invention relates to the technical field of marine aquaculture, and in particular to a marine aquaculture feeding device. Background Art

[0002] Marine aquaculture is a production method that uses shallow seas, mudflats, harbors, ponds and other sea areas to raise and breed marine economic animals and plants. It is one of the important ways for humans to use marine biological resources and develop marine aquaculture. In order to increase the growth rate of farmed animals and achieve higher economic benefits during marine aquaculture, artificial feeding is usually required. Due to the large area of ​​marine aquaculture, in order to improve the feeding efficiency, it is necessary to use a feeding device to feed the feed to improve the feeding efficiency. The marine aquaculture feeding device in the prior art mostly places a feed storage container on the sea surface. When feeding is required, the feed in the storage tank is released into the sea area by opening the feeding port. The existing feeding device is not only unable to be applied to a wider aquaculture sea area, but the delivery pipe is usually exposed to the outside. Affected by the marine environment, it is easy to retain a large amount of moisture inside, resulting in subsequent feed adhesion in the pipe, affecting the feeding efficiency.

[0003] The Chinese invention patent with the authorization announcement number CN118160670B discloses a feeding device for marine aquaculture, including a hull, a base fixedly connected to the middle of the hull, a storage tank arranged at the top of the base, and feed stored in the storage tank; a plurality of feeding components, which are arranged on the storage tank at equal intervals along the circumference, and the feeding components include a feeding tube, a feeding piece and an angle adjustment piece, the feeding piece is arranged on the base, one end of the feeding tube is connected to the storage tank through the feeding piece, and is used to transport feed, the angle adjustment piece is arranged on the storage tank and connected to the feeding tube, and is used to adjust the feeding angle of the feeding tube; a sealing component includes a lifting ring, a sealing ring and a sealing piece, the sealing piece is arranged in the lifting ring, the lifting ring is slidably connected to the base through a control piece, the sealing ring is fixedly connected to the inner wall of the lifting ring, and the other end of the feeding tube is sealed by the sealing piece. The device increases the feeding range, avoids the feed from sticking in the feeding tube, is suitable for marine aquaculture, and improves feeding efficiency.

[0004] However, the above device and the prior art still have the following deficiencies: during the feeding process, in order to ensure the feeding depth, the feeding tube needs to continue to sink, which may cause the feed to be blocked in the feeding tube during the sinking process, affecting the feeding effect; and the feeding tube enters the seawater, and the seawater will flow into the feeding tube, further causing the feed to be thrown poorly. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, in order to ensure the feeding depth, the feeding cylinder needs to sink continuously, which may cause the feed to be blocked in the discharge pipe during the sinking process, affecting the feeding effect; and the feeding pipe enters the seawater, and the seawater will be poured into the feeding cylinder, further causing the feed to be thrown unsmoothly, and a marine aquaculture feeding device is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The marine aquaculture feeding device comprises a floating plate, wherein floats are fixedly installed at the four corners of the bottom of the floating plate, a feed box is fixedly installed on the floating plate, and a feeding cylinder connected to the feed box is arranged at the bottom of the floating plate, a traction component is connected between the floating plate and the feeding cylinder, and further comprises: a feeding hole is opened on one side of the feeding cylinder, and a feeding component is slidably connected in the feeding cylinder, and the feeding component is used to open the feeding holes at different positions according to the feeding depth; a piston component is arranged in the feed box, and when the piston component moves, the feed is squeezed out and transported to the feeding cylinder.

[0007] Preferably, the traction assembly includes a traction rod rotatably mounted on a floating plate, fixed ear plates are provided at both ends of the traction rod, the fixed ear plates are fixedly connected to the floating plate, one end of the traction rod is transmission-connected to a motor, a traction rope is fixedly wound around the surface of the traction rod, and the traction rope is fixedly connected to the top of the feeding barrel at one end away from the traction rod.

[0008] Preferably, the feeding assembly includes a retaining ring slidably connected to the feeding cylinder, a spring is fixedly connected between two adjacent groups of retaining rings, a connecting plate is provided in the retaining ring, and both ends of the spring are fixedly connected to the two adjacent groups of connecting plates; a floating rod is fixedly connected between the connecting plates, the floating rod passes through the top of the feeding cylinder and extends to the outside of the feeding cylinder, and one end of the floating rod is fixedly connected to a balance rod, and both ends of the balance rod are connected to floating balls through a connecting rod.

[0009] Preferably, the piston assembly includes a push plate slidably connected to the feed box, one side of the push plate is fixedly connected to a connecting rod, one end of the connecting rod is slidably connected to the feed box and extends to the outside of the feed box.

[0010] Preferably, a transmission assembly is arranged between the connecting rod and the floating rod, and the transmission assembly includes a first rack fixedly connected to one side of the floating rod, a first gear is meshed with one side of the first rack, the first gear is rotatably mounted on the floating plate via a first rotating shaft, a second gear is transmission-connected to one side of the first gear, a second rack is meshed with the top of the second gear, and the second rack is fixedly connected to the bottom of the connecting rod.

[0011] Preferably, the second gear is rotatably mounted on the floating plate via the second rotating shaft, a second synchronous pulley is mounted on the surface of the first rotating shaft, and two sets of the second synchronous pulleys are transmission connected; fin plates are symmetrically mounted on both sides of the second rack, and two sets of positioning frames are symmetrically arranged on the floating plate and on both sides of the connecting rod, and the fin plates are slidably mounted in the positioning frames.

[0012] Preferably, an air bag is connected between the connecting rod and a side wall of the feed box, exhaust holes are equidistantly provided at the bottom of the air bag, and a one-way valve is installed in the exhaust hole.

[0013] Preferably, the bottom surface of the feed box is provided with an inclined surface, a feed discharge port is opened in the inclined surface, the bottom of the feed discharge port is connected to a guide hopper, the discharge port of the guide hopper is connected to a feed pipe, a feed port is opened on the top of the feeding cylinder, the feed pipe and the feed port are fixedly connected, and the feed pipe is configured as a wire hose structure.

[0014] Preferably, a stirring assembly is provided in the feed box above the feed discharge port, and the stirring assembly comprises a stirring shaft rotatably installed in the feed box and a stirring blade fixedly installed on the surface of the stirring shaft; One end of the stirring shaft extends to the outside of the feed box and is fixedly installed with a first synchronous belt pulley, and one end of the traction rod is also fixedly installed with a first synchronous belt pulley, and the two groups of the first synchronous belt pulleys are connected by a transmission belt.

[0015] Preferably, a first through groove is provided in the floating plate at a position where the traction rope passes through, a second through groove is provided in the floating plate at a position where the floating rod passes through, and overflow holes are provided on both sides of the floating plate.

[0016] Compared with the prior art, the present invention provides a marine aquaculture feeding device, which has the following beneficial effects: 1. The marine aquaculture feeding device is provided with a feeding cylinder and a retaining ring in an equidistant array in the feeding cylinder. The feeding hole is blocked in the initial state. As the sinking depth of the feeding cylinder changes, the buoyancy of the floating ball is increased to drive the retaining ring to move and open the feeding hole, thereby achieving the effect of uniform feeding in sea areas of different depths, and the feeding amount gradually increases according to the depth, ensuring smooth and sufficient feeding of feed; 2. The marine aquaculture feeding device is connected through a transmission component. The floating ball drives the floating rod and the piston device to perform a piston action in the feed box to squeeze and discharge the feed in the feed box. The piston pressure can not only further improve the feeding efficiency, but also prevent seawater from infiltrating into the feed box through the feeding tube; 3. The marine aquaculture feeding device drives the stirring shaft in the feed box to rotate through the traction rod, and uses the stirring blades on the surface of the stirring shaft to stir and disperse the feed in the feed box, thereby avoiding clogging of the feed outlet and preventing feed from agglomerating, and ensuring that the feed box can continuously feed the feeding cylinder; 4. The marine aquaculture feeding device is provided with an air bag, utilizes the movement of the push plate to compress the air bag in the feed box, and utilizes the exhaust hole to blow air into the feed box. The feed is blown to prevent the feed from agglomerating, and can also drive the gas flow in the feed box to remove moisture, ensure the dryness of the feed box, and further improve the feeding efficiency.

[0017] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention achieves the effect of uniform feeding in sea areas of different depths, and the feeding amount gradually increases according to the depth, ensuring that the feed is smoothly and fully fed; the use of piston pressure can not only further improve the feeding efficiency, but also prevent seawater from reversely osmosis into the feed box through the feeding tube; while avoiding clogging of the feed outlet, it prevents feed from agglomerating, ensuring that the feed box can continuously feed the feeding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 for Figure 1 The enlarged structural diagram of part A in the middle; Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission assembly of the present invention; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Figure 5 for Figure 4 The enlarged structural diagram of part B in the middle; Figure 6 It is a schematic diagram of the cross-sectional structure of the feeding tube of the present invention; Figure 7 The partial cross-sectional structure diagram of the feed box of the present invention is shown in FIG. Figure 1 ; Figure 8 The partial cross-sectional structure diagram of the feed box of the present invention is shown in FIG. Figure 2 ; Fig. 9 The partial cross-sectional structure diagram of the feed box of the present invention is shown in FIG. Figure 3 ; Fig.10 It is a schematic diagram of the main structure of the floating plate and the feed box of the present invention.

[0019] In the figure: 1, floating plate; 2, feed box; 3, traction rope; 4, feeding tube; 5, balance bar; 6, floating ball; 7, connecting rod; 8, floating; 9, traction rod; 10, motor; 11, fixed ear plate; 12, feeding hole; 13, retaining ring; 14, connecting plate; 15, spring; 16, floating rod; 17, first rack; 18, first through groove; 19, first gear; 20, second gear; 21, first rotating shaft; 22 , the second rack; 23, the connecting rod; 24, the positioning frame; 25, the second rotating shaft; 26, the second through groove; 27, the inclined surface; 28, the stirring shaft; 29, the stirring blade; 30, the overflow hole; 31, the first synchronous pulley; 32, the transmission belt; 33, the push plate; 34, the fin plate; 35, the air bag; 36, the exhaust hole; 37, the discharge port; 38, the guide hopper; 39, the conveying pipe; 40, the feed port; 41, the second synchronous pulley. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 10 The marine aquaculture feeding device of the present invention comprises a floating plate 1, and overflow holes 30 are provided on both sides of the floating plate 1. Floats 8 are fixedly installed at the four corners of the bottom of the floating plate 1, a feed box 2 is fixedly installed on the floating plate 1, and a feeding tube 4 connected to the feed box 2 is provided at the bottom of the floating plate 1. A traction assembly is connected between the floating plate 1 and the feeding tube 4, and the traction assembly comprises a traction rod 9 rotatably installed on the floating plate 1, and fixed ear plates 11 are provided at both ends of the traction rod 9. The fixed ear plates 11 are fixedly connected to the floating plate 1, and one end of the traction rod 9 is transmission-connected to a motor 10, and a traction rope 3 is fixedly wound around the surface of the traction rod 9, and the end of the traction rope 3 away from the traction rod 9 is fixedly connected to the top of the feeding tube 4, and a first through groove 18 is provided in the floating plate 1 at the position where the traction rope 3 passes through.

[0022] In this embodiment, buoys 8 are provided at the four corners of the bottom of the floating plate 1, so that the floating plate 1 can carry and the feeding tube 4 can float and move on the sea surface, which is beneficial to feeding work in the marine aquaculture area.

[0023] Specifically, when the floating plate 1 is moving or stationary, the traction rod 9 can be driven to rotate by starting the motor 10, and the traction rope 3 can be loosened and reeled up by driving forward and reverse rotation, so as to achieve the purpose of dropping the feeding tube 4 or retracting the feeding tube 4, and the aquaculture feed is continuously transported from the feed box 2 to the feeding tube 4, and then the feeding tube 4 feeds the aquaculture feed to different depth areas in the ocean.

[0024] A feeding hole 12 is provided on one side of the feeding cylinder 4, and a feeding assembly is slidably connected in the feeding cylinder 4. The feeding assembly is used to open the feeding holes 12 at different positions according to the feeding depth. The feeding assembly includes a retaining ring 13 slidably connected in the feeding cylinder 4, and a spring 15 is fixedly connected between two adjacent groups of retaining rings 13. A connecting plate 14 is arranged in the retaining ring 13. Both ends of the spring 15 are fixedly connected to the two adjacent groups of connecting plates 14. A floating rod 16 is fixedly connected between the connecting plates 14. The floating rod 16 passes through the top of the feeding cylinder 4 and extends to the outside of the feeding cylinder 4. One end of the floating rod 16 is fixedly connected to a balance rod 5, and both ends of the balance rod 5 are connected to a floating ball 6 through a connecting rod 7.

[0025] In this embodiment, at least four groups of retaining rings 13 are slidably arranged in the feeding cylinder 4, and at the same horizontal position, a feeding hole 12 is opened on the side wall of the feeding cylinder 4, and the initial position of the retaining ring 13 stays at the opening of the feeding hole 12. A spring 15 is connected between the retaining rings 13, and all the retaining rings 13 are connected by a floating rod 16. Since the top of the floating rod 16 extends to the outside of the feeding cylinder 4 and is connected to a balance rod 5, both ends of the balance rod 5 are connected to a floating ball 6 through a connecting rod 7. As the feeding cylinder 4 sinks, the buoyancy of the floating ball 6 increases, and the retaining ring 13 can be pulled to move in the feeding cylinder 4, releasing the feeding hole 12 for discharging. As the sinking depth of the feeding cylinder 4 changes, the retaining rings 13 are lifted one by one to release the feeding holes 12 at different positions, so that the breeding feed can be put in at different depths, and the amount of feed put in gradually increases according to the depth, ensuring that the feed is put in smoothly and fully.

[0026] It should be noted that the feeding cylinder 4 is in a full-feed state before being put into the feeding cylinder, and the feed box 2 continuously replenishes the feed during the sinking process.

[0027] A piston assembly is provided in the feed box 2. When the piston assembly moves, the feed is squeezed out and transported to the feeding cylinder 4. The piston assembly includes a push plate 33 slidably connected to the feed box 2. A connecting rod 23 is fixedly connected to one side of the push plate 33. One end of the connecting rod 23 is slidably connected to the feed box 2 and extends to the outside of the feed box 2. An inclined surface 27 is provided on the bottom surface of the feed box 2. A feed discharge port 37 is provided in the inclined surface 27. A feed guide hopper 38 is connected to the bottom of the feed discharge port 37. A feed outlet of the feed guide hopper 38 is connected to a feed pipe 39. A feed inlet 40 is provided on the top of the feeding cylinder 4. The feed pipe 39 is fixedly connected to the feed inlet 40, and the feed pipe 39 is configured as a steel wire hose structure.

[0028] In this embodiment, a piston assembly is provided in the feed box 2 , and the piston pressure can be used to further improve the feeding efficiency and prevent seawater from back-seeping into the feed box 2 through the feeding tube 4 .

[0029] Specifically, the connecting rod 23 is used to push the push plate 33 to move to one side of the inside of the feed box 2, and the feed is pushed to the direction of the discharge port 37. The inclined surface 27 is set as an inclined structure, and the feed will fall into the discharge port 37 along the inclined surface 27, and continue to enter the feeding cylinder 4 through the feed hopper 38 and the feed pipe 39 through the feed port 40.

[0030] A transmission assembly is arranged between the connecting rod 23 and the floating rod 16, and the transmission assembly includes a first rack 17 fixedly connected to one side of the floating rod 16, a first gear 19 is meshed with one side of the first rack 17, and the first gear 19 is rotatably mounted on the floating plate 1 through a first rotating shaft 21, a second gear 20 is transmission-connected to one side of the first gear 19, a second rack 22 is meshed with the top of the second gear 20, the second rack 22 is fixedly connected to the bottom of the connecting rod 23, and the second gear 20 is rotatably mounted on the floating plate 1 through a second rotating shaft 25, a second synchronous pulley 41 is installed on the surface of the first rotating shaft 21, and the two sets of second synchronous pulleys 41 are transmission-connected, and a second through groove 26 is opened in the floating plate 1 at the position where the floating rod 16 passes through.

[0031] Specifically, as the feeding cylinder 4 sinks, the retaining ring 13 is driven upward by the action of the floating ball 6, and the floating rod 16 moves upward, driving the first rack 17 to move upward, and the first rack 17 engages with the first gear 19 to rotate, and then drives the second gear 20 to rotate through the transmission of the two sets of second synchronous pulleys 41, thereby driving the connecting rod 23 to move into the feed box 2, driving the push plate 33 in the feed box 2 to do piston movement, and squeezing and discharging the feed in the feed box 2.

[0032] The fin plates 34 are symmetrically installed on both sides of the second rack 22 . Two groups of positioning frames 24 are symmetrically arranged on the floating plate 1 and located on both sides of the connecting rod 23 . The fin plates 34 are slidably installed in the positioning frames 24 .

[0033] It should be noted that in order to ensure the stability of the moving structure when the end of the connecting rod 23 is driven, fin plates 34 are symmetrically arranged on both sides of the second rack 22, and positioning frames 24 are symmetrically arranged on both sides of the connecting rod 23. During the movement of the connecting rod 23, the fin plates 34 slide stably in the positioning frames 24.

[0034] An air bag 35 is connected between the connecting rod 23 and a side wall of the feed box 2. Exhaust holes 36 are equidistantly provided at the bottom of the air bag 35. A one-way valve is installed in the exhaust hole 36.

[0035] Furthermore, considering that the working environment of the feed box 2 is often placed on the sea surface with high humidity, the feed may clump, affecting the smooth feeding and posing the risk of deterioration, the push plate 33 is moved to compress the air bag 35 in the feed box 2, and the exhaust hole 36 is used to blow air into the feed box 2. Blowing air into the feed can prevent the feed from clumping and drive the gas flow in the feed box 2 to remove moisture and ensure that the feed box 2 is dry.

[0036] A stirring assembly is provided above the feed opening 37 in the feed box 2, and the stirring assembly includes a stirring shaft 28 rotatably installed in the feed box 2 and a stirring blade 29 fixedly installed on the surface of the stirring shaft 28; one end of the stirring shaft 28 extends to the outside of the feed box 2 and is fixedly installed with a first synchronous pulley 31, and one end of the traction rod 9 is also fixedly installed with a first synchronous pulley 31, and the two sets of first synchronous pulleys 31 are connected by a transmission belt 32.

[0037] Since the feed box 2 and the feeding cylinder 4 are fed through the feed opening 37, the guide hopper 38 and the feed pipe 39, as the feeding cylinder 4 sinks, the feed pipe 39 is stretched, the feeding time becomes longer, and the feed stays longer inside it. Therefore, the feed opening 37 is easily blocked. In this embodiment, a rotatable stirring shaft 28 is provided above the feed opening 37, and a stirring blade 29 is provided on the surface of the stirring shaft 28. As the feeding cylinder 4 sinks, the traction rod 9 always keeps rotating. Therefore, the transmission belt 32 is used to drive the first synchronous pulley 31 at one end of the stirring shaft 28 to rotate, thereby driving the stirring shaft 28 to rotate, which can not only stir the feed in the feed box 2 to further prevent agglomeration, but also break up the fallen feed to prevent it from being blocked in the feed opening 37, thereby better ensuring the effect of subsequent continuous feeding.

[0038] It should be noted that the working environment of the present invention is the sea area, and seawater will inevitably enter the upper surface of the floating plate 1. Therefore, in addition to the first through groove 18 and the second through groove 26, overflow holes 30 are also provided on the enclosures on both sides of the floating plate 1 to discharge excess seawater in time to ensure the balance of the device. In addition, protective covers are provided on the outside of all electrical components and transmission parts, and sealing treatment is performed as needed to ensure the normal operation of the device.

[0039] Working principle: In the present invention, when the device is used, the motor 10 is started to drive the traction rod 9 to rotate, and the traction rope 3 is loosened and reeled by driving forward and reverse rotation, so as to achieve the purpose of throwing the feeding cylinder 4 or retracting the feeding cylinder 4, and the aquaculture feed is continuously transported from the feed box 2 to the feeding cylinder 4, and then the feeding cylinder 4 is used to feed the aquaculture feed to different depth areas in the ocean; As the feeding cylinder 4 sinks, the buoyancy of the float 6 increases, which can pull the retaining ring 13 to move in the feeding cylinder 4, release the feeding holes 12, and discharge the feed. As the sinking depth of the feeding cylinder 4 changes, the retaining rings 13 are lifted one by one to release the feeding holes 12 at different positions, so that the breeding feed can be put in at different depths, and the amount of feed put in gradually increases according to the depth, ensuring that the feed is put in smoothly and fully; At the same time, the floating rod 16 moves upward under the action of the floating ball 6, driving the first rack 17 to move upward, and the first rack 17 meshes with the first gear 19 to rotate, and then drives the second gear 20 to rotate through the transmission of the two sets of second synchronous pulleys 41, thereby driving the connecting rod 23 to move into the feed box 2, driving the push plate 33 in the feed box 2 to do piston movement, and squeezing and discharging the feed in the feed box 2; As the feeding cylinder 4 sinks, the traction rod 9 keeps rotating all the time, so the transmission belt 32 is used to drive the first synchronous pulley 31 at one end of the stirring shaft 28 to rotate, thereby driving the stirring shaft 28 to rotate, which can not only stir the feed in the feed box 2 to further prevent agglomeration, but also break up the fallen feed to prevent it from clogging in the discharge port 37, thereby better ensuring the effect of subsequent continuous feeding.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A marine aquaculture feeding device, comprising a floating plate (1), wherein floats (8) are fixedly mounted at the four corners of the bottom of the floating plate (1), a feed box (2) is fixedly mounted on the floating plate (1), and a feeding cylinder (4) connected to the feed box (2) is arranged at the bottom of the floating plate (1), and a traction component is connected between the floating plate (1) and the feeding cylinder (4), characterized in that: Also includes: A feeding hole (12) is provided on one side of the feeding cylinder (4), and a feeding assembly is slidably connected inside the feeding cylinder (4), wherein the feeding assembly is used to open the feeding holes (12) at different positions according to the feeding depth; A piston assembly is provided in the feed box (2); when the piston assembly moves, the feed is squeezed out and transported to the feeding cylinder (4).

2. The marine aquaculture feeding device according to claim 1, characterized in that: The traction assembly comprises a traction rod (9) rotatably mounted on a floating plate (1), fixed ear plates (11) being provided at both ends of the traction rod (9), the fixed ear plates (11) being fixedly connected to the floating plate (1), one end of the traction rod (9) being transmission-connected to a motor (10), a traction rope (3) being fixedly wound around the surface of the traction rod (9), and one end of the traction rope (3) being away from the traction rod (9) being fixedly connected to the top of a feeding cylinder (4).

3. The marine aquaculture feeding device according to claim 2, characterized in that: The feeding assembly comprises a retaining ring (13) slidably connected to the feeding cylinder (4), a spring (15) being fixedly connected between two adjacent groups of retaining rings (13), a connecting plate (14) being arranged in the retaining ring (13), and both ends of the spring (15) being fixedly connected to the two adjacent groups of connecting plates (14); A floating rod (16) is fixedly connected between the connecting plates (14), the floating rod (16) passes through the top of the feeding cylinder (4) and extends to the outside of the feeding cylinder (4), and one end of the floating rod (16) is fixedly connected to a balancing rod (5), and both ends of the balancing rod (5) are connected to a floating ball (6) via a connecting rod (7).

4. The marine aquaculture feeding device according to claim 3, characterized in that: The piston assembly comprises a push plate (33) slidably connected to the feed box (2), one side of the push plate (33) is fixedly connected to a connecting rod (23), and one end of the connecting rod (23) is slidably connected to the feed box (2) and extends to the outside of the feed box (2).

5. The marine aquaculture feeding device according to claim 4, characterized in that: A transmission assembly is provided between the connecting rod (23) and the floating rod (16), the transmission assembly comprising a first rack (17) fixedly connected to one side of the floating rod (16), a first gear (19) meshing on one side of the first rack (17), the first gear (19) being rotatably mounted on the floating plate (1) via a first rotating shaft (21), a second gear (20) being transmission-connected on one side of the first gear (19), a second rack (22) meshing on the top of the second gear (20), and the second rack (22) being fixedly connected to the bottom of the connecting rod (23).

6. The marine aquaculture feeding device according to claim 5, characterized in that: The second gear (20) is rotatably mounted on the floating plate (1) via a second rotating shaft (25); a second synchronous belt pulley (41) is mounted on the surface of the first rotating shaft (21); and two sets of the second synchronous belt pulleys (41) are transmission-connected; Fin plates (34) are symmetrically mounted on both sides of the second rack (22); two groups of positioning frames (24) are symmetrically arranged on the floating plate (1) and located on both sides of the connecting rod (23); and the fin plates (34) are slidably mounted in the positioning frames (24).

7. The marine aquaculture feeding device according to claim 6, characterized in that: An air bag (35) is connected between the connecting rod (23) and a side wall of the feed box (2). Exhaust holes (36) are equidistantly provided at the bottom of the air bag (35). A one-way valve is installed in the exhaust hole (36).

8. The marine aquaculture feeding device according to claim 2, characterized in that: The bottom surface of the feed box (2) is provided with an inclined surface (27), a feed outlet (37) is provided in the inclined surface (27), the bottom of the feed outlet (37) is connected to a guide hopper (38), the discharge port of the guide hopper (38) is connected to a feed pipe (39), a feed inlet (40) is provided at the top of the feeding cylinder (4), the feed pipe (39) and the feed inlet (40) are fixedly connected, and the feed pipe (39) is configured as a steel hose structure.

9. The marine aquaculture feeding device according to claim 8, characterized in that: A stirring assembly is provided in the feed box (2) above the feed discharge port (37), the stirring assembly comprising a stirring shaft (28) rotatably mounted in the feed box (2) and a stirring blade (29) fixedly mounted on the surface of the stirring shaft (28); One end of the stirring shaft (28) extends to the outside of the feed box (2) and is fixedly mounted with a first synchronous belt pulley (31), and one end of the traction rod (9) is also fixedly mounted with a first synchronous belt pulley (31), and the two sets of the first synchronous belt pulleys (31) are connected by a transmission belt (32).

10. The marine aquaculture feeding device according to claim 3, characterized in that: A first through slot (18) is provided in the floating plate (1) at a position where the traction rope (3) passes through, a second through slot (26) is provided in the floating plate (1) at a position where the floating rod (16) passes through, and overflow holes (30) are provided on both sides of the floating plate (1).

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